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常用的空气介质同轴连接器使用介质支撑来保持内外导体之间的相对位置,介质支撑的引入,使内外导体发生突变,不仅改变了同轴传输线结构,还在介质支撑存在的地方引入了不连续性,因此必须引入本地补偿来抵消不连续性的影响。本文介绍了同轴传输线不连续性分类方法,采用并联电容来表征同轴传输线的不连续性,在传输线不连续性的地方引入高阻传输线来抵消不连续性的影响,提出了基于高阻传输线模型的补偿尺寸计算方法,推导了补偿结构的高阻传输线长度计算公式,最后给出编程计算、HFSS仿真以及实验结果。
Commonly used air media coaxial connectors use dielectric supports to maintain the relative position between the inner and outer conductors. The introduction of dielectric support, which causes sudden changes in the inner and outer conductors, not only changes the coaxial transmission line structure, but also introduces where the dielectric support is not Therefore, we must introduce local compensation to offset the impact of discontinuities. This paper introduces the classification method of the discontinuity of coaxial transmission line, the parallel capacitance is used to characterize the discontinuity of coaxial transmission line, the high resistance transmission line is introduced to offset the discontinuity in the transmission line discontinuity, The calculation method of the compensation dimension of the model is deduced. The calculation formula of the high resistance transmission line length of the compensation structure is deduced. Finally, the programming calculation, HFSS simulation and experimental results are given.